PHP. Руководство по PHP. 2005
posix_getuid
posix_getuid
(PHP3>= 3.0.10, PHP4, PHP5)posix_getuid --
Return the real user ID of the current process
Description
int posix_getuid (void)
Return the numeric real user ID of the current process. See also
posix_getpwuid() for information on how to
convert this into a useable username.
posix_getsid
posix_isatty